Element block pseudo-class :active generated with border-radius height auto box-sizing content-box border 0px rgba(0,0,0,1) solid box-shadow 1px 1px 1px rgba(0,0,0,0.3) cursor default font-size 16px overflow hidden padding 20px position static margin 0px z-index auto transform background display block font-weight normal float none width 160px line-height 1 text-shadow 1px 1px 1px rgba(0,0,0,0.2) transition